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Finding the Fourth Proportional to 542,007.45, 747,908.64 and 300,229.74

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Solution

The fourth proportional to 542,007.45, 747,908.64 and 300,229.74 is: 414,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,007.45 : 747,908.64 = 300,229.74 : x
  2. Step 2: Convert to fraction form
    542,007.45/747,908.64 = 300,229.74/x
  3. Step 3: Cross multiply
    542,007.45x = 747,908.64 × 300,229.74
  4. Step 4: Simplify right side
    542,007.45x = 224,544,416,530.95
  5. Step 5: Solve for x
    x = 224,544,416,530.95/542,007.45
  6. Step 6: Final answer
    x = 414,282.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.